Foldable supporting and expanding device for pipeline repair

Abstract

The utility model relates to the technical field of pipeline repair, and discloses a foldable supporting and expanding device for pipeline repair, which comprises an outer screw tube, an inner screw shaft and a tube body, hinge blocks are arranged on the outer sides of the outer screw tube and the inner screw shaft, an outer swing arm is rotatably arranged on the hinge block on one side of the outer screw tube, a through groove is arranged on the outer swing arm, and the outer swing arm is connected with the tube body through the through groove. And an inner swing arm is rotationally arranged on the hinge block on one side of the inner screw shaft, a supporting plate is rotationally arranged at one end of the outer side of the outer swing arm and one end of the outer side of the inner swing arm through the hinge block, a clamping groove is formed in the supporting plate, and a rubber plate is movably clamped in the clamping groove. According to the foldable supporting and expanding device for pipeline repairing, a supporting plate is placed at the deformed position of a pipe body, and an outer screw pipe and an inner screw shaft are reversely rotated, so that an outer swing arm and an inner swing arm can drive the supporting plate to expand outwards, and therefore the deformed position of the pipe body can be repaired, and after repairing is completed, the supporting plate is fixed to the position of the pipe body. The outer swing arm and the inner swing arm can be folded and contracted, and carrying and using are convenient.

Description

Technical Field

[0001] This utility model relates to the field of pipeline repair technology, specifically a foldable support expansion device for pipeline repair. Background Technology

[0002] Pipelines are widely used for transporting fluids such as oil, water, and gas. When pipelines are stacked or in use, they may deform due to external pressure. Deformed pipelines cannot be used normally, so they need to be repaired and restored. Support and expansion equipment is used for pipeline repair. Existing pipeline support and expansion equipment is large in size, and since pipelines are usually used outdoors, it is inconvenient to fold, retract, carry, and use the equipment, and it is also inconvenient to repair pipelines of different diameters. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a foldable support and expansion device for pipe repair, which solves the problems that pipe support and expansion equipment is inconvenient to fold, retract, carry, and use during pipe repair, and is also inconvenient to use for repairing pipes of different diameters.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned purpose of making the pipe support and expansion device easy to fold, retract, carry, and use during pipe repair, and convenient for repairing pipes of different diameters, this utility model provides the following technical solution: A foldable support and expansion device for pipe repair, comprising an outer spiral tube, an inner spiral shaft, and a pipe body. A hinge block is provided on the outer side of the outer spiral tube and the inner spiral shaft. An outer swing arm rotatably rotates on the hinge block on one side of the outer spiral tube, and a through groove is provided on the outer swing arm. An inner swing arm rotatably rotates on the hinge block on one side of the inner spiral shaft. A support plate rotatably rotates at one end of the outer and inner swing arms via the hinge block. A slot is provided on the support plate, and a rubber plate is movably engaged within the slot.

[0007] An external handle is fixed to one end of the external helical tube, and an internal handle is fixed to one end of the internal helical shaft. A linkage shaft is fixed to the end of the internal helical shaft away from the external helical tube. Linear grooves are formed on the surfaces of both the external helical tube and the linkage shaft. An external adjusting screw rotates in the linear groove on one side of the external helical tube, and an internal adjusting screw rotates in the linear groove on one side of the linkage shaft. A linear slider slides inside the linear groove, and a rotating ring is fixed to the surface of the linear slider. An external bearing ring is rotatably connected to the rotating ring on one side of the external helical tube, and an internal bearing ring is rotatably connected to the rotating ring on one side of the linkage shaft.

[0008] Preferably, the support plate, the outer bearing ring, and the inner bearing ring are all fixedly equipped with hinge blocks. The two ends of the outer swing arm are rotatably connected to the support plate and the outer bearing ring respectively through the hinge blocks, and the two ends of the inner swing arm are rotatably connected to the support plate and the inner bearing ring respectively through the hinge blocks.

[0009] Preferably, the outer bearing ring is axially slidably connected to the outer helical tube via a linear groove and a linear slider, and the inner bearing ring is axially slidably connected to the linkage shaft via a linear groove and a linear slider.

[0010] Preferably, the outer adjusting screw passes through the linear slider on one side of the outer bearing ring, and the outer adjusting screw is threadedly connected to the linear slider; the inner adjusting screw passes through the linear slider on one side of the inner bearing ring, and the inner adjusting screw is threadedly connected to the linear slider.

[0011] Preferably, the rubber sheet is movably engaged with the support plate via a slot.

[0012] Preferably, the outer swing arm passes through the through slot, and the outer swing arm and the inner swing arm are arranged in a cross shape.

[0013] Preferably, the inner threaded shaft passes through the outer threaded tube, and the outer threaded tube is threadedly connected to the inner threaded shaft.

[0014] Preferably, the support plate is provided in four sets at equal intervals along the circumference of the tube.

[0015] Compared with the prior art, this utility model provides a foldable support expansion device for pipe repair, which has the following advantages:

[0016] 1. This foldable support expansion device for pipe repair allows for greater outward movement of the support plate via the outer and inner bearing rings when the distance between them is shorter, enabling support and repair of large-diameter pipes. Conversely, greater distance between them results in a shorter outward movement of the support plate via the outer and inner swing arms, allowing support and repair of small-diameter pipes. The distance between the outer and inner bearing rings can be adjusted by rotating the outer and inner adjusting screws to accommodate pipes of different diameters.

[0017] 2. This foldable support expansion device for pipe repair allows the outer and inner handles to be rotated in the opposite direction after the pipe body is repaired. This causes the outer spiral tube and the linkage shaft to move in the opposite direction, thereby moving the outer bearing ring and the inner bearing ring away from each other. The outer and inner swing arms can simultaneously drive the two ends of the support plate to move inward and approach the outer spiral tube and the inner spiral shaft, thereby allowing the outer swing arm, the inner swing arm, and the support plate to be folded and retracted for easy carrying and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a combined diagram of the outer swing arm, inner swing arm, and support plate of the present invention.

[0020] Figure 3 This is a diagram showing the combination of the external helical tube and the internal helical shaft in the structure of this utility model;

[0021] Figure 4 This is a partial sectional view of the external helical tube and linkage shaft of this utility model.

[0022] Figure 5 This is a combined diagram of the outer and inner swing arms of the present invention.

[0023] The components are: 1. External helical tube; 2. Internal helical shaft; 3. Tube body; 4. Hinge block; 5. External swing arm; 6. Through groove; 7. Internal swing arm; 8. Support plate; 9. Slot; 10. Rubber plate; 11. External handle; 12. Internal handle; 13. Linkage shaft; 14. Linear slide groove; 15. External adjusting screw; 16. Internal adjusting screw; 17. Linear slider; 18. Rotary ring; 19. External bearing ring; 20. Internal bearing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a foldable support expansion device for pipe repair, including an outer spiral tube 1, an inner spiral shaft 2 and a pipe body 3. A hinge block 4 is provided on the outer side of the outer spiral tube 1 and the inner spiral shaft 2. An outer swing arm 5 is rotatably mounted on the hinge block 4 on one side of the outer spiral tube 1. A through groove 6 is provided on the outer swing arm 5. An inner swing arm 7 is rotatably mounted on the hinge block 4 on one side of the inner spiral shaft 2. A support plate 8 is rotatably mounted on one side of the outer swing arm 5 and the inner swing arm 7 through the hinge block 4. A slot 9 is provided on the support plate 8. A rubber plate 10 is movably engaged in the slot 9.

[0026] An external handle 11 is fixed to one end of the external helical tube 1, and an internal handle 12 is fixed to one end of the internal helical shaft 2. A linkage shaft 13 is fixed to the end of the internal helical shaft 2 away from the external helical tube 1. Linear grooves 14 are formed on the surfaces of both the external helical tube 1 and the linkage shaft 13. An external adjusting screw 15 rotates in the linear groove 14 on one side of the external helical tube 1, and an internal adjusting screw 16 rotates in the linear groove 14 on one side of the linkage shaft 13. A linear slider 17 slides inside the linear groove 14, and a rotating ring 18 is fixed to the surface of the linear slider 17. An outer bearing ring 19 is rotatably connected to the rotating ring 18 on one side of the linkage shaft 13, and an inner bearing ring 20 is rotatably connected to the rotating ring 18 on the other side of the linkage shaft 13. By placing the outer helical tube 1 and the inner helical shaft 2 into the tube body 3, and then rotating the outer handle 11 and the inner handle 12 in the opposite direction, the outer handle 11 can drive the outer helical tube 1 to rotate to one side, and the inner handle 12 can drive the linkage shaft 13 to rotate to the other side through the inner helical shaft 2, so that the outer swing arm 5 and the inner swing arm 7 can drive the support plate 8 to move outward and support and repair the tube body 3.

[0027] Furthermore, hinge blocks 4 are installed and fixed on the support plate 8, the outer bearing ring 19, and the inner bearing ring 20. The two ends of the outer swing arm 5 are rotatably connected to the support plate 8 and the outer bearing ring 19 respectively through the hinge blocks 4. The two ends of the inner swing arm 7 are rotatably connected to the support plate 8 and the inner bearing ring 20 respectively through the hinge blocks 4. When the outer bearing ring 19 and the inner bearing ring 20 approach or move away from each other, the hinge blocks 4 can drive the outer swing arm 5 and the inner swing arm 7 to swing, so that the outer swing arm 5 and the inner swing arm 7 can drive the support plate 8 to move inward or outward through the hinge blocks 4.

[0028] Furthermore, the outer bearing ring 19 is axially slidably connected to the outer solenoid 1 via the linear groove 14 and the linear slider 17, and the inner bearing ring 20 is axially slidably connected to the linkage shaft 13 via the linear groove 14 and the linear slider 17. The linkage shaft 13 is rotatably connected to the hinge block 4 via the outer bearing ring 19, and the outer solenoid 1 is rotatably connected to the hinge block 4 via the inner bearing ring 20. Therefore, when the outer solenoid 1 and the linkage shaft 13 are rotated in the opposite direction, the outer solenoid 1 will not exert a circumferential torque force on the outer swing arm 5 via the outer bearing ring 19, and the linkage shaft 13 will not exert a circumferential torque force on the inner swing arm 7 via the inner bearing ring 20. Therefore, when the outer solenoid 1 and the linkage shaft 13 are rotated in the opposite direction, the outer swing arm 5 and the inner swing arm 7 will not cause the support plate 8 to rotate inside the tube body 3, so that the support plate 8 can better support and repair the deformed parts of the tube body 3 via the rubber plate 10.

[0029] Furthermore, the outer adjusting screw 15 passes through the linear slider 17 on one side of the outer bearing ring 19, and the outer adjusting screw 15 is threadedly connected to the linear slider 17. The inner adjusting screw 16 passes through the linear slider 17 on one side of the inner bearing ring 20, and the inner adjusting screw 16 is threadedly connected to the linear slider 17. The outer adjusting screw 15 extends to the outside of the outer helical tube 1 and is rotatably connected to it. The inner adjusting screw 16 extends to the outside of the linkage shaft 13 and is rotatably connected to it. When the outer adjusting screw 15 is rotated, the linear groove 14 and the linear slider 17 provide axial guidance for the outer bearing ring 19, enabling the outer bearing ring 19 to move axially along the outer helical tube 1. When the inner adjusting screw 16 is rotated, the linear groove 14 and the linear slider 17 provide axial guidance for the inner bearing ring 20, enabling the inner bearing ring 20 to move axially along the linkage shaft 13. Therefore, it is possible to respectively Adjusting the positions of the outer bearing ring 19 and the inner bearing ring 20 allows the support plate 8 to move outward a greater distance via the outer swing arm 5 and the inner swing arm 7, thus supporting and repairing large-diameter pipes 3. Similarly, the greater the distance between the outer bearing ring 19 and the inner bearing ring 20, the shorter the outward distance via the outer swing arm 5 and the inner swing arm 7, thus supporting and repairing small-diameter pipes 3. Therefore, by rotating the outer adjusting screw 15 and the inner adjusting screw 16, the distance the support plate 8 supports outward or inward can be adjusted again, so that the support plate 8 can adapt to pipes 3 of different diameters, thereby supporting and repairing pipes 3 of different diameters.

[0030] Furthermore, the rubber plate 10 is movably engaged with the support plate 8 via the slot 9, which facilitates the quick removal or installation of the rubber plate 10 from the support plate 8. The support plate 8 contacts the pipe body 3 via the rubber plate 10, thus preventing damage caused by direct contact between the support plate 8 and the pipe body 3.

[0031] Furthermore, the outer swing arm 5 passes through the through groove 6, and the outer swing arm 5 and the inner swing arm 7 are arranged in a cross shape, so that the two ends of the support plate 8 can be moved simultaneously through the cross-shaped outer swing arm 5 and the inner swing arm 7, so that the support plate 8 can support and repair the pipe body 3.

[0032] Furthermore, the inner screw shaft 2 passes through the outer screw tube 1, and the outer screw tube 1 is threadedly connected to the inner screw shaft 2. When the outer screw tube 1 and the inner screw shaft 2 are rotated in the opposite direction, and the inner screw shaft 2 can drive the linkage shaft 13 to rotate in the opposite direction to the outer screw tube 1, the outer screw tube 1 can drive the outer swing arm 5 to swing through the outer bearing ring 19, and the linkage shaft 13 can drive the inner swing arm 7 to swing through the inner bearing ring 20.

[0033] Furthermore, four sets of support plates 8 are equidistantly arranged along the circumference of the pipe body 3, so that the four sets of support plates 8 can support and repair the deformed parts of the pipe body 3 through the rubber plate 10.

[0034] In use, the outer screw tube 1 and the inner screw shaft 2 are inserted into the tube body 3. Then, the outer handle 11 and the inner handle 12 are rotated in opposite directions. The outer handle 11 drives the outer screw tube 1 to rotate to one side, and the inner handle 12 drives the linkage shaft 13 to rotate to the other side via the inner screw shaft 2. Therefore, when the outer screw tube 1 and the linkage shaft 13 rotate in opposite directions, they move axially in opposite directions, causing the outer bearing ring 19 and the inner bearing ring 20 to move closer to each other. Consequently, the outer screw tube 1 drives the outer swing arm 5 to swing via the outer bearing ring 19, and the linkage shaft 13 drives the inner swing arm 7 to swing via the inner bearing ring 20. Thus, the cross-shaped outer swing arm 5 and the inner swing arm... 7. It can drive the support plate 8 to expand radially, and the rubber plate 10 on the support plate 8 can press against the inner wall of the tube 3 outward, thereby pushing the deformed part of the tube 3 outward to reset it. Therefore, the tube 3 can be repaired. In addition, after the tube 3 is repaired, the outer handle 11 and the inner handle 12 are rotated in the opposite direction, and the outer screw tube 1 and the linkage shaft 13 move axially in the opposite direction, so that the outer bearing ring 19 and the inner bearing ring 20 are moved away from each other. The outer swing arm 5 and the inner swing arm 7 can simultaneously drive the two ends of the support plate 8 to move inward and approach the outer screw tube 1 and the inner screw shaft 2, so that the outer swing arm 5, the inner swing arm 7 and the support plate 8 can be folded and retracted for carrying and use.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable support and expansion device for pipe repair, comprising an external threaded tube (1), an internal threaded shaft (2), and a pipe body (3), characterized in that: A hinge block (4) is provided on the outer side of the external helical tube (1) and the inner helical shaft (2). An outer swing arm (5) is rotatably provided on the hinge block (4) on one side of the external helical tube (1). A through groove (6) is provided on the outer swing arm (5). An inner swing arm (7) is rotatably provided on the hinge block (4) on one side of the inner helical shaft (2). A support plate (8) is rotatably provided on one side of the outer swing arm (5) and the inner swing arm (7) through the hinge block (4). A slot (9) is provided on the support plate (8). A rubber plate (10) is movably engaged in the slot (9). An external handle (11) is fixed to one end of the external helical tube (1), an internal handle (12) is fixed to one end of the internal helical shaft (2), and a linkage shaft (13) is fixed to the end of the internal helical shaft (2) away from the external helical tube (1). Linear grooves (14) are provided on the surfaces of the external helical tube (1) and the linkage shaft (13). An external adjusting screw (15) rotates in the linear groove (14) on one side of the external helical tube (1), and an internal adjusting screw (16) rotates in the linear groove (14) on one side of the linkage shaft (13). A linear slider (17) slides inside the linear groove (14). A rotating ring (18) is fixed to the surface of the linear slider (17). An external bearing ring (19) is rotatably connected to the rotating ring (18) on one side of the external helical tube (1), and an internal bearing ring (20) is rotatably connected to the rotating ring (18) on one side of the linkage shaft (13).

2. The foldable support expansion device for pipeline repair according to claim 1, characterized in that: The support plate (8), outer bearing ring (19) and inner bearing ring (20) are all fixed with hinge blocks (4). The two ends of the outer swing arm (5) are rotatably connected to the support plate (8) and outer bearing ring (19) respectively through the hinge blocks (4). The two ends of the inner swing arm (7) are rotatably connected to the support plate (8) and inner bearing ring (20) respectively through the hinge blocks (4).

3. The foldable support expansion device for pipeline repair according to claim 1, characterized in that: The outer bearing ring (19) is axially slidably connected to the outer helical tube (1) through a linear groove (14) and a linear slider (17), and the inner bearing ring (20) is axially slidably connected to the linkage shaft (13) through a linear groove (14) and a linear slider (17).

4. The foldable support expansion device for pipeline repair according to claim 1, characterized in that: The outer adjusting screw (15) passes through the linear slider (17) on one side of the outer bearing ring (19), and the outer adjusting screw (15) is threadedly connected to the linear slider (17). The inner adjusting screw (16) passes through the linear slider (17) on one side of the inner bearing ring (20), and the inner adjusting screw (16) is threadedly connected to the linear slider (17).

5. A foldable support expansion device for pipeline repair according to claim 1, characterized in that: The rubber sheet (10) is movably engaged with the support plate (8) via the slot (9).

6. A foldable support expansion device for pipeline repair according to claim 1, characterized in that: The outer swing arm (5) passes through the through groove (6), and the outer swing arm (5) and the inner swing arm (7) are arranged in a cross shape.

7. A foldable support expansion device for pipeline repair according to claim 1, characterized in that: The inner threaded shaft (2) passes through the outer threaded tube (1), and the outer threaded tube (1) is threadedly connected to the inner threaded shaft (2).

8. A foldable support expansion device for pipeline repair according to claim 1, characterized in that: The support plate (8) is provided in four sets at equal intervals along the circumference of the tube body (3).

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